(CNN) — Mehmet Oz, the host of the Dr. Oz Show, was on Capitol Hill today. The doctor is clearing his name after a company claimed he endorsed their Pure Green Coffee diet plan.

Dr. Oz said he did not endorse the product, however. It’s part of a senate committee hearing on phony and false promises from weight loss products. A suit against Pure Green Coffee alleged that the company capitalized on the green coffee bean diet fad with bogus weight loss claims and fake news sites to market its supplement.

The company allegedly began selling its products weeks after green coffee was promoted on the Dr. Oz Show.